RHSA-2025:11572 — Security Advisory

Red Hat Security Advisory: kernel-rt security update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · July 23, 2025

Updated · October 31, 2026

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: net: atm: fix use after free in lec_send() (CVE-2025-22004)

  • kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() (CVE-2025-22121)

  • kernel: ibmvnic: Use kernel helpers for hex dumps (CVE-2025-22104)

  • kernel: ext4: fix off-by-one error in do_split (CVE-2025-23150)

  • kernel: udmabuf: fix a buf size overflow issue during udmabuf creation (CVE-2025-37803)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Related CVEs

RHSA-2025:11572 — Red Hat Security Advisory: kernel-rt security update | PulseLinux